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  • Simple Editing: Easily create, rename, and manage text files and directories directly in your browser.
  • Gist integration: Save your work to a GitHub Gist and share it with others.
  • Bundler Support: Add a Gemfile to your project and click “Bundle Install”. The absence of native networking in WASI is not a problem.
  • Networking: For networking, try using Faraday with the Faraday::Adapter::JS adapter to make web requests from Ruby.wasm.
  • Quick start: Access gems or gists quickly with{gem_name} and{id} URLs.
  • Gems Caching: Take advantage of the browser’s cache to prevent re-downloading gems, enhancing efficiency.

Built on top of ruby.wasm.


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We transform growth-stage startups into unicorns, build developer tools, and create open source products.

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